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Moumoujus

AMP-ACRYLATES/DIMETHYLAMINOETHYLMETHACRYLATE COPOLYMER.

Valuable / FILM FORMING, HAIR FIXING

This synthetic polymer acts as a film-former and texture enhancer, creating a smooth, water-resistant layer on skin or hair. It is derived from acrylic/methacrylic acid monomers and dimethylaminoethyl methacrylate, often neutralized with aminomethyl propanol (AMP).

Summary

film forming hair fixing viscosity controlling

Science

Mechanism of Action

It forms a thin, flexible film that improves product adherence and creates a protective barrier. This film also enhances texture, providing a smooth feel, and offers humidity resistance in hair applications.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–5%
Optimal

5%

Key findings

  1. 01 NIH (PubMed/PMC) on film formation
  2. 02 SpecialChem Ingredient Database on cosmetic utility
  3. 03 Studies on related acrylate copolymers regarding drug solubility

Transparency

Dusting Analysis

Not commonly dusted

There is no research data indicating that this ingredient is commonly dusted.

The Formula

Formulation

Solubility
Water
Optimal pH 6 – 7
0 7 14

Stability

This polymer is generally stable at neutral pH, often pre-neutralized with AMP for water solubility. Extreme pH environments can compromise its stability.

Conflicts

  • Highly anionic thickeners (potential precipitation)
  • Strong oxidizing agents
  • Nitrosating agents (due to secondary amine components)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5%
Sensitization risk Low

The CIR Expert Panel deems acrylate copolymers safe for cosmetic use when formulated to prevent irritation. EU regulations (Annex III (61)) require control over secondary amine purity and nitrosamine formation.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

This film-forming polymer is a versatile and safe ingredient, offering water resistance and improved texture across various cosmetic formulations.

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